[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [local‑first/Owner](https://evolu.dev/docs/api-reference/common/local-first/Owner) › OwnerError

Defined in: [packages/common/src/local-first/Owner.ts:403](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/Owner.ts#L403)

Common interface implemented by all owner domain errors.

## Extended by

- [`ProtocolVersionError`](https://evolu.dev/docs/api-reference/common/local-first/Protocol/interfaces/ProtocolVersionError)
- [`ProtocolWriteKeyError`](https://evolu.dev/docs/api-reference/common/local-first/Protocol/interfaces/ProtocolWriteKeyError)
- [`ProtocolWriteError`](https://evolu.dev/docs/api-reference/common/local-first/Protocol/interfaces/ProtocolWriteError)
- [`ProtocolQuotaError`](https://evolu.dev/docs/api-reference/common/local-first/Protocol/interfaces/ProtocolQuotaError)
- [`ProtocolSyncError`](https://evolu.dev/docs/api-reference/common/local-first/Protocol/interfaces/ProtocolSyncError)
- [`StorageQuotaError`](https://evolu.dev/docs/api-reference/common/local-first/Storage/interfaces/StorageQuotaError)

## Properties

<a id="ownerid"></a>

### ownerId

```ts
readonly ownerId: string & Brand<"Id"> & Brand<"OwnerId">;
```

Defined in: [packages/common/src/local-first/Owner.ts:404](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/Owner.ts#L404)